News tagged with volatile substances

The result of slow degradation

Why do environmental pollutants accumulate in the cold polar regions? This may not only be due to the fact that many substances are less volatile at low temperatures, as has been long suspected, but also ...

Apr 14, 2014
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Rosetta-comet will wake up early

(Phys.org) —On its way towards the Sun comet Churyumov-Gerasimenko, next year's destination of ESA's spacecraft Rosetta, will start emitting gas and dust earlier than previously expected. The comet's activity ...

Aug 20, 2013
5 / 5 (1) 0 | with audio podcast

An electronic nose can tell pears and apples apart

Swedish and Spanish engineers have created a system of sensors that detects fruit odours more effectively than the human sense of smell. For now, the device can distinguish between the odorous compounds emitted ...

May 08, 2013
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Herbivore defence in ferns

(Phys.org)—Unlike flowering plants, bracken ferns do not release any odour signals to attract the enemies of their attackers for their own benefit.

Nov 21, 2012
not rated yet 0 | with audio podcast